I replace most of the 2008-2011 cable with the wider 2012 cable. On some machines the screw holes mounting it to the frame do not match up so I just use one. The failures occur as the cable goes over the last step so I put pads or plastic toothpicks on either side of the cable to prevent the bottom of the case from pressing on the cable. Make sure you get the 15" cable as the logic board connectors are different a orientation between the 13" & 15". Only replace with a new cable, not not get a used one.